Riboflavin
Also known as: E101, Vitamin B2, Flavaxin, Vitamin B 2, Vitamin G
EFSA re-evaluated riboflavin (E101(i)) and riboflavin-5'-phosphate sodium (E101(ii)) in 2013 and concluded they are unlikely to be of safety concern at authorised uses. FDA permits riboflavin as a nutrient added to enriched grain products at mandated levels.
What it is
Riboflavin (vitamin B2), a water-soluble B vitamin. Used as a yellow-orange food color (E101) and as a vitamin fortificant.
Yellow-orange food color; vitamin B2 fortificant.
Why it's flagged
- EFSA noted insufficient chronic toxicity data to set an ADI, but found no safety concern at authorized use levels
What regulators actually say
"The Panel concluded, despite the uncertainties in the database, that riboflavin (E 101(i)) and riboflavin-5'-phosphate sodium (E 101(ii)) are unlikely to be of safety concern at the currently authorised uses and use levels as food additives."
"Enriched flour ... contains in each pound 2.9 milligrams of thiamin, 1.8 milligrams of riboflavin, 24 milligrams of niacin, 0.7 milligrams of folic acid, and 20 milligrams of iron."
Regulatory status
United States — FDA
Permitted food additive / nutrient (21 CFR 137.165)
European Union — EFSA
permitted (E101); no ADI; quantum satis in most foods
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